threshold-ui/addons/api/addon/models/fragment-principal.js

import Fragment from 'ember-data-model-fragments/fragment';
import { attr } from '@ember-data/model';

export default class FragmentPrincipal extends Fragment {
  // =attributes

  @attr('string', {
    description: 'ID of the related scope',
  })
  scope_id;

  @attr('string', {
    description: 'ID of the related principal (user or group)',
  })
  principal_id;

  @attr('string', {
    description: 'Type of the related principal (user or group)',
  })
  type;
}